Improvement in combined share and point



r J. KILLEF E R.

Combined Share and Point.

Patented Dec. 9,1879.

Ammvs N.PETERS. PKOTO-LITHOGRAFHER, WASHINGTQN, D C

been molded.

I JOHN KILLEFER, OF BLOOMINGDALE, MICHIGAN.

UNITED STATES. PATENT OFFICE.

IMPROVEMENT IN COMBINED SHARE AND.PO|NT."

Specification forming part of Letters Patent No. 222,502, dated December 9, 1879 application filed October 17, 1879.

Total! whom it may concern:

Be it known that I, JOHN KILLEFER, of Bloomingdale, in the county of Van Buren,

and-in the State of Michigan, have invented part of this specification.

Thenature of my invention relates to the manufacture of plowshares; and it consists in a combined plow share and point composed of a wrought-iron point and acast-iron share made by heating thepoint to a welding-heat, placing it in a mold, and casting the share onto it, as will be hereinafter more fully set forth.

In the annexed drawings, Figure l is a View showing my improved plowshare. Figs. 2 and 3 show the flask or mold in which the share and point are united.

A represents the lower half of the flask or mold. B is the upper half of the same. 0 represents the plow-point, made of wroughtiron; and D is the space in the mold, made from any suitable pattern, into which the molten cast-iron is to be poured for forming the plowshare.

The wrought-iron point 0 is first heated to a proper degreefor welding and then placed in the mold or flask in which the pattern has The mold or flask is then quickly closed and the molten cast-iron poured into the space D in contact with the heated wrought-iron point 0, the molten cast-iron entering the pores of the heated point, so as to make a perfect union between the two metals without any seam or division, except so far as the color of the metal will show.

I do not claim, broadly, the process of casting one kind of metal onto another kind of metal in a mold or flask, by heating one of the metals, for uniting the same, as I am aware that such process is not new.

I am also aware that a plowshare has been made of cast-iron with a steel point, by placing the steel point in the mold after said point has been properly prepared and tinned, and then casting the share onto it; and I do not claim such as my invention.

My combined plow share and point, as a new article of manufacture, consists of a wroughtiron point and a cast-iron share made by heating the point to a welding-heat, placing it in a mold, and then casting the share to it.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

As a new article of manufacture, a combined plow share and point consisting of a Wrought-iron point and a cast-iron share made by heating the point to a welding-heat, placing it in a mold, and casting the share onto it, substantially as described.

In testimony that I claim the foregoing I have hereunto set my hand this 8th day of October, 187 9.

JOHN KILLEFER.

Witnesses:

L. A. FOSTER, NAHUM GILBERT. 

